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Finding the Fourth Proportional to 112,272.30, 154,934.82 and 61,971.30

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Solution

The fourth proportional to 112,272.30, 154,934.82 and 61,971.30 is: 85,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,272.30 : 154,934.82 = 61,971.30 : x
  2. Step 2: Convert to fraction form
    112,272.30/154,934.82 = 61,971.30/x
  3. Step 3: Cross multiply
    112,272.30x = 154,934.82 × 61,971.30
  4. Step 4: Simplify right side
    112,272.30x = 9,601,512,210.67
  5. Step 5: Solve for x
    x = 9,601,512,210.67/112,272.30
  6. Step 6: Final answer
    x = 85,519.87

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